Bruce Banner is a fictional character in the Marvel Comics universe, created by writer Stan Lee and artist Jack Kirby. He first appeared in "The Incredible Hulk" #1 in 1962. Banner is a brilliant scientist who specializes in gamma radiation. After a lab accident, he transforms into the Hulk, a powerful green creature, whenever he experiences intense anger or stress. As the Hulk, Banner possesses superhuman strength and durability, making him one of the strongest characters in the Marvel universe. Despite his immense power, Banner struggles with his dual identity and seeks to control the Hulk to prevent destruction and harm to others.